How many moles of CuO can be produced from 0.900 mol of Cu2O in ...

[rmenurse]

How many moles of CuO can be produced from 0.900 mol of Cu2O in the following reaction? 2 Cu2O(s) + O2(g)  4 CuO(s)
 
  A) 0.450 mol
  B) 0.900 mol
  C) 1.80 mol
  D) 3.60 mol

Question 2

Calculate the molality of a 24.4 (by mass) aqueous solution of phosphoric acid (H3PO4).
 
  A) 3.29 m
  B) 323 m
  C) 6.59 m
  D) 1.65 m
  E) The density of the solution is needed to solve the problem.

[lcapri7]

Answer to Question 1

C

Answer to Question 2

A

[rmenurse]

Gracias!

[kjohnson]

TYSM